efunbox-xyyf-mobile-android/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/main_root"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/black">

    <ImageView
            android:id="@+id/main_webloading"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginBottom="5dp"
            android:background="@drawable/edufound_loading" />


    <android.support.v7.widget.RecyclerView
            android:id="@+id/main_recycler"
            android:layout_width="500dp"
            android:layout_height="200dp"
            android:visibility="gone"></android.support.v7.widget.RecyclerView>
</FrameLayout>